package com.myexmple.playone;

import com.alibaba.fastjson.JSON;

import java.util.HashMap;
import java.util.Map;

public class TestJavac {
    public static void main(String[] args) {
        Map<String, String> map = new HashMap<>();
        for (int i = 0; i < 10; i++) {
            map.put(String.valueOf(i),String.valueOf(i));
        }
        String s = JSON.toJSONString(map);
        System.out.println(s);
    }
}
